CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

YOLO BYPASS - LISBON (LSBC1)

Latitude: 38.48º N	Longitude: 121.59º W	Elevation: 20 Feet
Location: Yolo County in California		Bulletin Group: Lower Sacramento		River Group: Lower Sacramento

Issuance Time:

May 01 2025 at 8:26 AM PDT

Next Issuance:

May 02 2025 at 9:00 AM PDT

Action/Monitor: 13.0 Feet

Minor Flood: 19.0 Feet

Moderate Flood: 26.0 Feet

Major Flood: 31.1 Feet

Plot Type:

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.

Observed Data Credit
	Raw streamflow data is provided by the California Department of Water Resources. View California Department of Water Resources Data for this station location.

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2024*	56,800	17.50	Feb 24, 2024
2023	76,100	18.46	Jan 16, 2023
2022	1,160	8.30	Dec 31, 2021
2021	659	7.22	Jan 28, 2021
2020*	690	7.33	Dec 7, 2019
Historical High Stage/Flow Events (Period of Record - January 1914 to Present) - Ranked by Flow
1986	564,800	27.50	Feb 20, 1986
1997	507,400	27.18	Jan 3, 1997
1965	323,100	24.69	Dec 25, 1964
* Incomplete record for the year
** Datum changed from NGVD29 to NAVD88 on 10/01/2006. The difference is -1.06 ft and must be applied to all data before date to convert to NAVD88

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
31.1 Feet	Stages above 31.1 feet result in flooding outside levees. Top of east yolo bypass containment levee.
26.2 Feet	Water is up to the steps of Skyrakers Duck Club buildings.
25.0 Feet	Top of the Mound Farms levee protecting the housing area.
22.5 Feet	Kerney Ranch house floods.
19.0 Feet	Mound Farms and Senator Outing Duck Club are flooded.
16.0 Feet	Glide In Ranch is completely flooded.
15.0 Feet	County Road 155 is flooded west of the Golden Sprig Duck Club.
14.0 Feet	Skyrakers Duck Club ponds begin to flood.
13.0 Feet	Flood waters extend approximately 1 mile west of the tow drain downstream of the Lisbon gage.
12.0 Feet	County Road 107 is flooded.
11.0 Feet	Glide In Ranch & Mound Farms begin to flood.
10.5 Feet	Local roads on the east side of the Yolo Bypass south of the I-80 causeway are flooded.
9.5 Feet	Yolo Bypass flooding extends 1/4 mile west. No structural damage is occurring.

Official 7 Day National Weather Service Forecast (CAZ017)

Today: Sunny. Highs 80 to 88. Southwest winds up to 10 mph.

Tonight: Clear. Lows 48 to 54. South winds up to 10 mph with gusts to around 20 mph.

Friday: Sunny. Highs 74 to 84. South winds up to 10 mph with gusts to around 20 mph.

Friday Night: Mostly clear in the evening then becoming mostly cloudy. Lows around 53. South winds 10 to 15 mph with gusts to around 25 mph.

Saturday: Mostly cloudy in the morning, then partly cloudy with a slight chance of rain showers in the afternoon. Highs 66 to 72. South winds around 10 mph with gusts to around 20 mph.

Saturday Night: Mostly clear. Lows 49 to 55.

Sunday: Mostly sunny. Warmer. Highs 73 to 80.

Sunday Night through Wednesday: Clear. Lows 51 to 59. Highs 75 to 85.

Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS Sacramento Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.

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Verification - Historical Graphical RVF
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